Biology
Physics
Chemistry
Electronics
Misc
100
cell wall
What is a rigid layer of polysaccharides enclosing a plant membrane?
100
Transmits sound
What is a sound wave?
100
neutron
What is an elementary particle with a zero charge?
100
bit
What is a small piece or quantity of something?
100
Caused the Mississippi River to flow backward for a few hours in February of 1812
What is the New Madrid fault line?
200
Contributes to the greenhouse effect by absorbing infrared radiation
What is greenhouse gas?
200
Electromagnetic radiation emitted during radioactive decay
What is gamma ray?
200
Particle that is electronically charged positive or negative
What is an ion?
200
spam
What is unwanted email?
200
Invented bifocals
Who is Ben Franklin?
300
Cell division in sexually reproducing organisms
What is meiosis?
300
Twisting force
What is torque?
300
Property of an atom that causes it to have weight
What is atomic mass?
300
Known as the mother of computer science; daughter of famed poet Lord Byron
Who is Ada Lovelace?
300
Invented dynamite
Who is Alfred Nobel? (Nobel Peace Prize)
400
Elizabeth Blackwell
Who was the first American female to qualify as a physician?
400
Proposed the 1st Theory of Relativity
Who is Galileo?
400
Gave the 1st description of red-green color blindness
Who is English chemist John Dalton?
400
Pioneer of electronical science
Who is Alessandro Volta?
400
Invented kevlar, used in body armor worn by both soldiers and policemen in the field
Who is Stephanie Kwolek?
500
Discovered cells; invented the spring balance, enabling pocket watches to be made
Who is Robert Hooke?
500
Discovered radio waves
Who is Heinrich Hertz?
500
Claims to have discovered the periodic table in a dream
Who is Dmitri Mendeleev?
500
Principal architect of COBOL, the most widely used computer language of the 20th century
Who is Grace Hopper?
500
First stated laws of planetary motion
Who is Johannes Kepler?
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